// For flags

CVE-2022-3565

Linux Kernel Bluetooth l1oip_core.c del_timer use after free

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability, which was classified as critical, has been found in Linux Kernel. Affected by this issue is the function del_timer of the file drivers/isdn/mISDN/l1oip_core.c of the component Bluetooth. The manipulation leads to use after free. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211088.

Se ha encontrado una vulnerabilidad, clasificada como crítica, en el Kernel de Linux. Este problema afecta a la función del_timer del archivo drivers/isdn/mISDN/l1oip_core.c del componente Bluetooth. La manipulación conlleva el uso después de libre. Es recomendado aplicar un parche para corregir este problema. El identificador de esta vulnerabilidad es VDB-211088

A use-after-free flaw was found in the Linux kernel’s ISDN over IP tunnel functionality in how a local user triggers the release_card() function called from l1oip_cleanup(). This flaw allows a local user to crash or potentially escalate their privileges on the system.

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
Low
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-17 CVE Reserved
  • 2022-10-17 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
  • CWE-416: Use After Free
  • CWE-662: Improper Synchronization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 2.6.27 < 4.9.331
Search vendor "Linux" for product "Linux Kernel" and version " >= 2.6.27 < 4.9.331"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.10 < 4.14.296
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.10 < 4.14.296"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.15 < 4.19.262
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.15 < 4.19.262"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 4.20 < 5.4.220
Search vendor "Linux" for product "Linux Kernel" and version " >= 4.20 < 5.4.220"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.5 < 5.10.150
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.5 < 5.10.150"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.11 < 5.15.75
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.11 < 5.15.75"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 5.16 < 5.19.17
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.16 < 5.19.17"
-
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.0 < 6.0.3
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.0 < 6.0.3"
-
Affected